Publications by authors named "Jack Beltz"

Article Synopsis
  • Geographic and environmental factors, particularly temperature, significantly influence the microbial communities in wild flies more than geographic location does.
  • The microbiota composition varies based on diet, with wild flies showing different microbiota profiles depending on the type of food consumed, rather than simply reflecting their diet.
  • Findings suggest that the interaction between the flies’ dietary habits, microbiota, and genetic differences contributes to local adaptation and evolution, especially in a single-orchard ecosystem.
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Unlabelled: The fruit fly is a model for understanding how hosts and their microbial partners interact as the host adapts to wild environments. These interactions are readily interrogated because of the low taxonomic and numeric complexity of the flies' bacterial communities. Previous work has established that host genotype, the environment, diet, and interspecies microbial interactions can all influence host fitness and microbiota composition, but the specific processes and characters mediating these processes are incompletely understood.

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We investigated the impacts of drought on ammonia-oxidizing archaea (AOA) and bacteria (AOB) in a salt marsh and compared the response to the total bacterial community. We analyzed abundance and community composition of A genes by QPCR and TRFLP, respectively, in three vegetation zones in 2014 (pre-drought), 2016 (drought), and 2017 (post-drought), and analyzed bacterial 16S rRNA genes by QPCR, TRFLP, and MiSeq analyses. AOA and AOB abundance in the zone increased significantly in 2016, while abundance decreased in the tall zone, and showed little change in the short zone.

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